Example #1
0
func (z *zkCluster) GetQueryNodes() ([]clustering.QueryNode, errors.Error) {
	impl, ok := getConfigStoreImplementation(z)
	if !ok {
		return nil, errors.NewAdminConnectionError(nil, z.ConfigurationStoreId())
	}
	qryNodes := []clustering.QueryNode{}
	nodes, _, err := impl.conn.Children("/" + z.Name())
	if err != nil {
		return nil, errors.NewAdminGetClusterError(err, z.Name())
	}
	for _, name := range nodes {
		nodePath := "/" + z.Name() + "/" + name
		data, _, err := impl.conn.Get(nodePath)
		if err != nil {
			return nil, errors.NewAdminGetNodeError(err, nodePath)
		}
		queryNode := &zkQueryNodeConfig{}
		err = json.Unmarshal(data, queryNode)
		if err != nil {
			return nil, errors.NewAdminDecodingError(err)
		}
		qryNodes = append(qryNodes, queryNode)
	}
	return qryNodes, nil
}
func getNodeFromRequest(req *http.Request) (clustering.QueryNode, errors.Error) {
	var node clustering.QueryNode
	decoder := json.NewDecoder(req.Body)
	err := decoder.Decode(&node)
	if err != nil {
		return nil, errors.NewAdminDecodingError(err)
	}
	return node, nil
}
func getClusterFromRequest(req *http.Request) (clustering.Cluster, errors.Error) {
	var cluster clustering.Cluster
	decoder := json.NewDecoder(req.Body)
	err := decoder.Decode(&cluster)
	if err != nil {
		return nil, errors.NewAdminDecodingError(err)
	}
	return cluster, nil
}
Example #4
0
func (z *zkConfigStore) ClusterByName(name string) (clustering.Cluster, errors.Error) {
	data, _, err := z.conn.Get("/" + name)
	if err != nil {
		return nil, errors.NewAdminGetClusterError(err, name)
	}
	var clusterConfig zkCluster
	err = json.Unmarshal(data, &clusterConfig)
	if err != nil {
		return nil, errors.NewAdminDecodingError(err)
	}
	clusterConfig.configStore = z
	return &clusterConfig, nil
}
Example #5
0
func (z *zkCluster) QueryNodeByName(name string) (clustering.QueryNode, errors.Error) {
	impl, ok := getConfigStoreImplementation(z)
	if !ok {
		return nil, errors.NewAdminConnectionError(nil, z.ConfigurationStoreId())
	}
	nodePath := "/" + z.ClusterName + "/" + name
	data, _, err := impl.conn.Get(nodePath)
	if err != nil {
		return nil, errors.NewAdminGetNodeError(err, nodePath)
	}
	var queryNode zkQueryNodeConfig
	err = json.Unmarshal(data, &queryNode)
	if err != nil {
		return nil, errors.NewAdminDecodingError(err)
	}
	return &queryNode, nil
}
Example #6
0
func wrapAPI(s *server.Server, w http.ResponseWriter, req *http.Request, f apiFunc) {
	obj, err := f(s, w, req)
	if err != nil {
		writeError(w, err)
		return
	}

	if obj == nil {
		w.WriteHeader(http.StatusNotFound)
		return
	}

	buf, json_err := json.Marshal(obj)
	if json_err != nil {
		writeError(w, errors.NewAdminDecodingError(json_err))
		return
	}
	w.WriteHeader(http.StatusOK)
	w.Header().Set("Content-Type", "application/json")
	w.Write(buf)
}
Example #7
0
func (z *zkConfigStore) GetClusters() ([]clustering.Cluster, errors.Error) {
	clusters := []clustering.Cluster{}
	nodes, _, err := z.conn.Children("/")
	if err != nil {
		return nil, errors.NewAdminGetClusterError(err, "/")
	}
	for _, name := range nodes {
		if name == _RESERVED_NAME {
			continue
		}
		data, _, err := z.conn.Get("/" + name)
		if err != nil {
			return nil, errors.NewAdminGetClusterError(err, name)
		}
		cluster := &zkCluster{}
		err = json.Unmarshal(data, cluster)
		if err != nil {
			return nil, errors.NewAdminDecodingError(err)
		}
		clusters = append(clusters, cluster)
	}
	return clusters, nil
}